Review Paper:
Interaction between
Nitric Oxide and Hydrogen Sulfide in Abiotic Stress Challenged Plants
Chandrakar Vibhuti, Kumar Meetul and Keshavkant S.
Res. J. Biotech.; Vol. 17(1); 149-155;
doi: https://doi.org/10.25303/1701rjbt149155; (2022)
Abstract
Nitric oxide (NO) and hydrogen sulfide (H2S) are two versatile gaseous molecules
which play myriad roles in the growth and development of plants. They play an important
role in signal transduction process in plants exposed to various environmental stresses.
Signal transduction and various antioxidant strategies are vital for the management
of abiotic stress imposed alterations in plants. These two secondary messengers
neutralize the cell perturbations caused by stresstriggered over produced reactive
oxygen species. Study of crosstalk between NO and H2S reveals the functional importance
of proteins regulated during Snitrosylation and S-sulfhydration respectively, the
two major signal-dependent post-translational protein modifications.
Also, NO and H2S decrease the toxic impacts of reactive species by triggering the
signal transduction process, enhancing antioxidant enzymes, stimulating other signaling
molecules and regulating the transcript levels of different stress-responsive genes.
This review mainly emphasizes on the roles of NO and H2S in responses of plants
to abiotic stresses and reveals the crosstalk involving NO and H2S in stress tolerance
mechanisms.
